. American engineer and railroad journal . SMOKE BOX AND SUPERHEATER jt-l-B^-*, LONGITUDINAL SECTION THROUGH BOILER. November, 1909. AMERICAN ENGINEER AND RAILROAD JOURNAL. 427 evaporative heating surface has kept pace with the increase inthe weight of the locomotive, as compared with the class M4,the increase in the size of the drivers has affected the B Dfactor very materially, giving a figure of 1,003, as comparedwith 880. When the B D factor is determined by the use of anequivalent heating surface, the derivation of which will be ex-plained later, it is found that it has a va
. American engineer and railroad journal . SMOKE BOX AND SUPERHEATER jt-l-B^-*, LONGITUDINAL SECTION THROUGH BOILER. November, 1909. AMERICAN ENGINEER AND RAILROAD JOURNAL. 427 evaporative heating surface has kept pace with the increase inthe weight of the locomotive, as compared with the class M4,the increase in the size of the drivers has affected the B Dfactor very materially, giving a figure of 1,003, as comparedwith 880. When the B D factor is determined by the use of anequivalent heating surface, the derivation of which will be ex-plained later, it is found that it has a valueof 815 as compared with 714 for the class general the locomotive will be seen tobe a normally conservative design arrangedin many particulars to suit the special con-ditions under which it is to be operated. Anelectric headlight on a heavy freight loco-motive is somewhat unusual, as is also thelocation of the air reservoir. The differentparts of the locomotive will be consideredseparately, beginning with the boiler. Boiler.—A radial stay, extended wagon toptype of bo
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
